Home / 877,799.40-1,210,878.12-714,631.44

Finding the Fourth Proportional to 877,799.40, 1,210,878.12 and 714,631.44

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Solution

The fourth proportional to 877,799.40, 1,210,878.12 and 714,631.44 is: 985,796.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,799.40 : 1,210,878.12 = 714,631.44 : x
  2. Step 2: Convert to fraction form
    877,799.40/1,210,878.12 = 714,631.44/x
  3. Step 3: Cross multiply
    877,799.40x = 1,210,878.12 × 714,631.44
  4. Step 4: Simplify right side
    877,799.40x = 865,331,574,560.09
  5. Step 5: Solve for x
    x = 865,331,574,560.09/877,799.40
  6. Step 6: Final answer
    x = 985,796.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.